Basic leucine zipper (bZIP) domain of bZIP transcription factors: a DNA-binding and dimerization domain; Basic leucine zipper (bZIP) factors comprise one of the most important classes of enhancer-type transcription factors. They act in networks of homo and heterodimers in the regulation of a diverse set of cellular processes including cell survival, learning and memory, lipid metabolism, and cancer progression, among others. They also play important roles in responses to stimuli or stress signals such as cytokines, genotoxic agents, or physiological stresses. The bZIP structural motif contains a basic region and a leucine zipper, composed of alpha helices with leucine residues 7 amino acids apart, which stabilize dimerization with a parallel leucine zipper domain. Dimerization of leucine zippers creates a pair of the adjacent basic regions that bind DNA and undergo conformational change. Dimerization occurs in a specific and predictable manner resulting in hundreds of dimers having unique effects on transcription.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|
gi 1002280096 167 RPRKKMRLPEIQQLVRSLTVENDGLREEMVALQRACTALS 206
Cdd:cd14709    17 RDRKKLRYQYLEQLVADREREILLLREELEMYKQWCEELD 56

Basic leucine zipper (bZIP) domain of Cyclic AMP-responsive element-binding protein-like 2 (CREBL2): a DNA-binding and dimerization domain; CREBL2 is a bZIP transcription factor that interacts with CREB and plays a critical role in adipogenesis and lipogenesis. Its overexpression upregulates the expression of PPARgamma and CEBPalpha to promote adipogenesis as well as accelerate lipogenesis by increasing GLUT1 and GLUT4. bZIP factors act in networks of homo and heterodimers in the regulation of a diverse set of cellular processes. The bZIP structural motif contains a basic region and a leucine zipper, composed of alpha helices with leucine residues 7 amino acids apart, which stabilize dimerization with a parallel leucine zipper domain. Dimerization of leucine zippers creates a pair of the adjacent basic regions that bind DNA and undergo conformational change. Dimerization occurs in a specific and predictable manner resulting in hundreds of dimers having unique effects on transcription.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|
gi 1002280096 167 RPRKKMRLPEIQQLVRSLTVENDGLREEMVALQRACTALS 206
Cdd:cd14709    17 RDRKKLRYQYLEQLVADREREILLLREELEMYKQWCEELD 56

Basic leucine zipper (bZIP) domain of Cyclic AMP-responsive element-binding protein-like 2 (CREBL2): a DNA-binding and dimerization domain; CREBL2 is a bZIP transcription factor that interacts with CREB and plays a critical role in adipogenesis and lipogenesis. Its overexpression upregulates the expression of PPARgamma and CEBPalpha to promote adipogenesis as well as accelerate lipogenesis by increasing GLUT1 and GLUT4. bZIP factors act in networks of homo and heterodimers in the regulation of a diverse set of cellular processes. The bZIP structural motif contains a basic region and a leucine zipper, composed of alpha helices with leucine residues 7 amino acids apart, which stabilize dimerization with a parallel leucine zipper domain. Dimerization of leucine zippers creates a pair of the adjacent basic regions that bind DNA and undergo conformational change. Dimerization occurs in a specific and predictable manner resulting in hundreds of dimers having unique effects on transcription.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|
gi 1002280096 167 RPRKKMRLPEIQQLVRSLTVENDGLREEMVALQRACTALS 206
Cdd:cd14709    17 RDRKKLRYQYLEQLVADREREILLLREELEMYKQWCEELD 56